diff --git a/sprout/config/compiler/intel.hpp b/sprout/config/compiler/intel.hpp
index 4ec79bce..f2a392a0 100644
--- a/sprout/config/compiler/intel.hpp
+++ b/sprout/config/compiler/intel.hpp
@@ -48,5 +48,6 @@
 #endif
 
 #define SPROUT_WORKAROUND_NO_TEMPLATE_ARGUMENT_DEDUCTION_WITH_ALIASES
+#define SPROUT_WORKAROUND_NO_DEFAULT_TEMPLATE_PARAMETERS_SFINAE_WITH_ARRAY
 
 #endif	// #ifndef SPROUT_CONFIG_COMPILER_INTEL_HPP
diff --git a/sprout/detail/literal_def.hpp b/sprout/detail/literal_def.hpp
index 8d895484..91a8dbcd 100644
--- a/sprout/detail/literal_def.hpp
+++ b/sprout/detail/literal_def.hpp
@@ -40,11 +40,11 @@
 	struct NAME<ELEM> { \
 	public: \
 		SPROUT_STATIC_CONSTEXPR sprout::basic_string<ELEM, LENGTH> value \
-			SPROUT_STATIC_CONSTEXPR_DATA_MEMBER_INNER(sprout::to_string(STRING)) \
+			SPROUT_STATIC_CONSTEXPR_DATA_MEMBER_INNER(STRING) \
 			; \
 	}; \
 	SPROUT_CONSTEXPR_OR_CONST sprout::basic_string<ELEM, LENGTH> NAME<ELEM>::value \
-		SPROUT_STATIC_CONSTEXPR_DATA_MEMBER_OUTER(sprout::to_string(STRING))
+		SPROUT_STATIC_CONSTEXPR_DATA_MEMBER_OUTER(STRING)
 
 //
 // SPROUT_LITERAL_CHAR_DEF
diff --git a/sprout/io.hpp b/sprout/io.hpp
index 978e6ae5..b30ac257 100644
--- a/sprout/io.hpp
+++ b/sprout/io.hpp
@@ -70,7 +70,8 @@ namespace sprout {
 				SPROUT_CONSTEXPR boolean_flag() SPROUT_DEFAULTED_DEFAULT_CONSTRUCTOR_DECL
 				boolean_flag(boolean_flag const&) = default;
 				SPROUT_CONSTEXPR boolean_flag(bool flag)
-					: flag_(flag)
+					: sprout::integral_constant<sprout::io::flags::fmtflags, Flag>()
+					, flag_(flag)
 				{}
 				SPROUT_CONSTEXPR boolean_flag operator()(bool flag) const {
 					return boolean_flag(flag);
diff --git a/sprout/string/string.hpp b/sprout/string/string.hpp
index 5a3184b6..d09187a6 100644
--- a/sprout/string/string.hpp
+++ b/sprout/string/string.hpp
@@ -39,6 +39,7 @@
 #if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
 #	include <sprout/iterator/index_iterator.hpp>
 #endif
+#include <sprout/workaround/enable_if_with_array.hpp>
 
 namespace sprout {
 	namespace detail {
@@ -317,15 +318,15 @@ namespace sprout {
 				str, pos, NS_SSCRISK_CEL_OR_SPROUT::min(n, str.size() - pos)
 				)
 		{}
-		template<std::size_t N2, typename Enable = typename std::enable_if<(N2 - 1 <= N)>::type>
-		SPROUT_CONSTEXPR basic_string(T const(& arr)[N2])
+		template<std::size_t N2 SPROUT_ENABLE_IF_WITH_ARRAY_IN_TEMPLATE_PARAMS((N2 - 1 <= N))>
+		SPROUT_CONSTEXPR basic_string(T const(& arr)[N2] SPROUT_ENABLE_IF_WITH_ARRAY_IN_PARAMS((N2 - 1 <= N)))
 			: impl_type(
 				sprout::make_index_tuple<N2 - 1>::make(),
 				arr, 0, sprout::char_traits_helper<typename sprout::basic_string<T, N2 - 1>::traits_type>::length(arr, N2 - 1)
 				)
 		{}
-		template<std::size_t N2, typename Enable = typename std::enable_if<(N2 - 1 <= N)>::type>
-		SPROUT_CONSTEXPR basic_string(T const(& arr)[N2], size_type n)
+		template<std::size_t N2 SPROUT_ENABLE_IF_WITH_ARRAY_IN_TEMPLATE_PARAMS((N2 - 1 <= N))>
+		SPROUT_CONSTEXPR basic_string(T const(& arr)[N2], size_type n SPROUT_ENABLE_IF_WITH_ARRAY_IN_PARAMS((N2 - 1 <= N)))
 			: impl_type(
 				sprout::make_index_tuple<N2 - 1>::make(),
 				arr, 0, NS_SSCRISK_CEL_OR_SPROUT::min(n, sprout::char_traits_helper<typename sprout::basic_string<T, N2 - 1>::traits_type>::length(arr, N2 - 1))
diff --git a/sprout/type_traits/integral_constant.hpp b/sprout/type_traits/integral_constant.hpp
index 94dd19ff..47d45388 100644
--- a/sprout/type_traits/integral_constant.hpp
+++ b/sprout/type_traits/integral_constant.hpp
@@ -23,6 +23,10 @@ namespace sprout {
 		typedef typename std::integral_constant<T, V>::value_type value_type;
 		typedef integral_constant type;
 	public:
+#if defined(__INTEL_COMPILER) || defined(__ICL) || defined(__ICC) || defined(__ECC)
+		SPROUT_CONSTEXPR integral_constant() SPROUT_NOEXCEPT {}
+		integral_constant(integral_constant const&) = default;
+#endif
 		SPROUT_CONSTEXPR
 		operator value_type() const SPROUT_NOEXCEPT {
 			return std::integral_constant<T, V>::value;
diff --git a/sprout/workaround.hpp b/sprout/workaround.hpp
index a9f07537..2bd10c23 100644
--- a/sprout/workaround.hpp
+++ b/sprout/workaround.hpp
@@ -11,5 +11,6 @@
 #include <sprout/config.hpp>
 #include <sprout/workaround/recursive_function_template.hpp>
 #include <sprout/workaround/base_class_construct.hpp>
+#include <sprout/workaround/enable_if_with_array.hpp>
 
 #endif	// #ifndef SPROUT_WORKAROUND_HPP
diff --git a/sprout/workaround/enable_if_with_array.hpp b/sprout/workaround/enable_if_with_array.hpp
new file mode 100644
index 00000000..68215079
--- /dev/null
+++ b/sprout/workaround/enable_if_with_array.hpp
@@ -0,0 +1,26 @@
+/*=============================================================================
+  Copyright (c) 2011-2015 Bolero MURAKAMI
+  https://github.com/bolero-MURAKAMI/Sprout
+
+  Distributed under the Boost Software License, Version 1.0. (See accompanying
+  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+=============================================================================*/
+#ifndef SPROUT_WORKAROUND_ENABLE_IF_WITH_ARRAY_HPP
+#define SPROUT_WORKAROUND_ENABLE_IF_WITH_ARRAY_HPP
+
+#include <type_traits>
+#include <sprout/config.hpp>
+
+//
+// SPROUT_ENABLE_IF_WITH_ARRAY_IN_TEMPLATE_PARAMS
+// SPROUT_ENABLE_IF_WITH_ARRAY_IN_PARAMS
+//
+#ifdef SPROUT_WORKAROUND_NO_DEFAULT_TEMPLATE_PARAMETERS_SFINAE_WITH_ARRAY
+#	define SPROUT_ENABLE_IF_WITH_ARRAY_IN_TEMPLATE_PARAMS(EXPR)
+#	define SPROUT_ENABLE_IF_WITH_ARRAY_IN_PARAMS(EXPR) , typename std::enable_if<(EXPR)>::type* = 0
+#else
+#	define SPROUT_ENABLE_IF_WITH_ARRAY_IN_TEMPLATE_PARAMS(EXPR) , typename = typename std::enable_if<(EXPR)>::type
+#	define SPROUT_SFINAE_WITH_ARRAY_IN_PARAMS(EXPR)
+#endif
+
+#endif	// #ifndef SPROUT_WORKAROUND_ENABLE_IF_WITH_ARRAY_HPP